Improvement in bows for chair-backs



c. KILBURN.

Bows for .Chair-Backs.

[310,134,890 U PatentedJan. 14,1 87 3 77 M71 @JJ es,

UNITED STATES PATENT OFFICE.

CHENEY KILBURN, OF PHILADELPHIA, PEN NSYLVANIA, ASSIGNOR TO HIM- SELFAND JOEL H. GATES, OF SAME PLACE:

IMPROVEMENT IN BOWS FOR CHAlR-BACKS.

Specification forming part of Letters Patent No. 134,896, dated January14, 1873.

To all whom it may concern:

Be it known that I, CHENEY KILBURN, of Philadelphia, Pennsylvania, haveinvented an Improvement in Bows for Ghair-Backs, 8w., of which thefollowing is a specification: a

The object of my invention is to enable bent wooden frames or hows forcradles, backs of chairs, &c., to be produced at a cheaper rate tha-nthose heretofore used; and this objectI attain by constructing suchframes or bows of two or more short pieces, A A & c., united, afterhaving been bent to the required shape, by coupling-blocks B, as shownin the sectional View, Figure 1,of the accompanying drawing.

Bows orLbentfram es for articles of furn iture such, for instance, asthe end frame D of the Cradle illustrated in the perspective View, Fig.2, or the chair-back, Fig. 3-have heretofore been made of a single stripof hickory or other suitable wood bent to the required shape.

Clear, straight-gramed stufl', entirely free from knots, and from six toeight feet in length, for cradle-frames, must be used, the cost of suchlong strips being nearly double that or short strips of the samematerial; hence, by'forming the bows of short strips, united bycouplingblocks, I am enabled to very considerably reduce the cost of thefurniture.

The sectional bows are quite as strong as those made in one piece, andthe couplingblocks can be turned or carved so as to impart an ornamentalfinish to the furniture.

Sectional bows may, if desired, -be made in accordance with my inventionwith. two or more joints.

I claim as my invention- A bow for chair-backs, 8w., composed or two ormore bent strips of Wood united by coupling blocks, substantially asdescribed.

In testimony whereof I have signed my name to this specification in thepresence of two subscribin g witnesses.

CHENEY KILBURN.

Witnesses:

WM. A. STEEL, HARRY SMITH.

